General Science - Physics MCQs
Physics Objective (Multiple Choice) General Knowledge & General Science Questions & Answers for SSC-CGL, UPPSC, UPSC, NDA, CDS and UPSC Civil Services Prelims Examinations.
71. What are ultrasonic sounds?
72. Which of the following is the cause of echo?
73. Which of these parts of the ear responds to sound waves like a microphone’s diaphragm?
74. Which of the following is another unit of frequency?
75. What is the relationship between the velocity of sound and the pressure of gas when the temperature remains constant?
76. Which of the following is correct about the speed of the sound, at same temperature?
77. Which of the following is correct about a Sound wave?
78. Which of the following represents ideal gas law?
79. What is the S.I. unit of absorptive power?
80. What do we call the temperature and pressure at which solid, liquid, and vapor phases of a particular substance coexist in equilibrium?